February 18, 1860

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Features

Violins

Improved Gold Separator

Applications for the Extension of Patents

Polytechnic Association of the American Institute

Our Special Correspondence - February 18, 1860

An Improved Weighing Scale Wanted

Meteorology in the Cellar

Radiation and Absorption of Heat by the Earth

Wax--Its uses and Colors

The Plan of a Country House

Extensive Experiments to Test the Strength of Iron and Steel

Testing of Wrought Iron Girders

The Banks of the United States

Railroad Items

Agricultural Lectures at New Haven

Magnetized Wheels of Locomotives--A Timely Hint to Inventors

Wells' Annual of Scientific Discovery for 1830

A Column of Varieties

Coal Tar Again

Linen and Flax

Coal Tar for Fruit Trees

Contraction of Steel in Hardening

Elastic Hose for Steam

Douglas's Steam Trap

Glass Steam Engine

New Machine for Making Packing Boxes

Strength of Wrought Iron Beams

Burnings--Fire-Escapes

Ignorance of Steam--Its Dangers and Safety

Ericsson's Air Engine

Ex-Commissioner Bishop

The Steamer Adriatic

Weekly Summary of Inventions- February 18, 1860

Carpet Loom Extension Case--Important Decision

Foreign News and Markets- February 18, 1860

New York Markets- February 18, 1860

Patent Claims- February 18, 1860

Self-Closing Inkstand

Phelps' Envelope-Opener

The Power of Water - February 18, 1860

Zoological and Botanical Garden- February 18, 1860

Departments

Departments

Notes and Queries- February 18, 1860

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